The TFS plugin currently allows excluding sources from given paths, however our source tree is very large and very active. New paths are added every day. The exclude / cloaking feature would allow us to exclude files / paths but if a new path is added then that path is pulled down in the next build even though it is not required. In our case it would be much more sensible to indicate to the TFS plugin which paths should be included and have it only get items from those paths.